EP 1557372 A1 20050727 - DEEP DRAW PACKING METHOD AND FILM WITH SMALL SHRINKABILITY FOR DEEP DRAW PACKING
Title (en)
DEEP DRAW PACKING METHOD AND FILM WITH SMALL SHRINKABILITY FOR DEEP DRAW PACKING
Title (de)
TIEFZIEHVERPACKUNGSVERFAHREN UND FOLIE MIT GERINGER SCHRUMPFBARKEIT ZUR TIEFZIEHVERPACKUNG
Title (fr)
PROCEDE D'EMBALLAGE PAR FORMAGE PROFOND ET PELLICULE PRESENTANT UNE CAPACITE DE RETRECISSEMENT REDUITE POUR EMBALLAGE A FORMAGE PROFOND
Publication
Application
Priority
- JP 0312104 W 20030922
- JP 2002282050 A 20020926
Abstract (en)
The present invention provides a deep draw packaging method including placing an object (C) in a concave container portion (1) formed through molding of a film with small shrinkability (A) having a residual thermal shrinkage rate at 100 DEG C of more than 0 and 15% or less, the film (A) being formed by stretching a film having deep draw moldability and then thermally relaxing the film, the film having a surface which is formed of a heat sealable material and to become the inner wall of the container portion; transferring the concave container portion (1) to a vacuum packaging apparatus (5); placing, on the concave container portion (1), a cover portion (2) formed of a film (B) which can be heat welded to the film with small shrinkability (A); thermally shrinking a side face portion (11) and a bottom face portion (12) of the concave container portion (1) by use of a concave portion heating/shrinking mold (6) such that the side face portion (11) and the bottom face portion (12) come into close contact with the object (C); and sealing an upper peripheral portion (13) of the concave container portion (1) with the film (B) through heating/sealing means (7). The method of the invention attains a close contact between the film and an object to be packed, preventing generation of wrinkles or vacant gaps. Moreover, less curling is generated at the seal portion. <IMAGE>
IPC 1-7
IPC 8 full level
B65B 53/00 (2006.01); B32B 27/34 (2006.01); B65B 31/02 (2006.01); B65B 53/02 (2006.01); B65D 1/26 (2006.01); B65D 65/40 (2006.01); B65B 25/06 (2006.01)
CPC (source: EP US)
B32B 27/08 (2013.01 - US); B32B 27/34 (2013.01 - EP US); B65B 31/028 (2013.01 - EP US); B65B 53/02 (2013.01 - EP US); B65D 1/26 (2013.01 - EP US); B32B 2439/70 (2013.01 - US); B65B 25/065 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1557372 A1 20050727; EP 1557372 A4 20051228; EP 1557372 B1 20070314; EP 1557372 B2 20100630; AT E356757 T1 20070415; AU 2003299098 A1 20040419; CN 100343138 C 20071017; CN 1684878 A 20051019; DE 60312542 D1 20070426; DE 60312542 T2 20071213; DE 60312542 T3 20101118; JP 2004115066 A 20040415; JP 4471562 B2 20100602; US 2006254218 A1 20061116; US 7237371 B2 20070703; WO 2004028920 A1 20040408
DOCDB simple family (application)
EP 03756600 A 20030922; AT 03756600 T 20030922; AU 2003299098 A 20030922; CN 03822563 A 20030922; DE 60312542 T 20030922; JP 0312104 W 20030922; JP 2002282050 A 20020926; US 52923605 A 20050325